Abstract
Spontaneous interaction is a desirable characteristic associated with mobile and ubiquitous computing. The aim is to enable users to connect their personal devices with devices encountered in their environment in order to take advantage of interaction opportunities in accordance with their situation. However, it is difficult to secure spontaneous interaction as this requires authentication of the encountered device, in the absence of any prior knowledge of the device. In this paper we present a method for establishing and securing spontaneous interactions on the basis of \emph{spatial references} that capture the spatial relationship of the involved devices. Spatial references are obtained by accurate sensing of relative device positions, presented to the user for initiation of interactions, and used in a peer authentication protocol that exploits a novel mechanism for message transfer over ultrasound to ensures spatial authenticity of the sender.
Original language | English |
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Title of host publication | UbiComp 2007 |
Subtitle of host publication | Ubiquitous Computing - 9th International Conference, UbiComp 2007, Proceedings |
Pages | 199-216 |
Number of pages | 18 |
DOIs | |
Publication status | Published - 2007 |
Event | Ubicomp 2007 - Innsbruck, Austria Duration: 16 Sept 2007 → 19 Sept 2007 http://www.ubicomp2007.org/ |
Publication series
Name | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
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Volume | 4717 LNCS |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Conference
Conference | Ubicomp 2007 |
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Country/Territory | Austria |
City | Innsbruck |
Period | 16.09.2007 → 19.09.2007 |
Internet address |